Police are working with Hammersmith and Fulham Council in opening a rest centre for people who have been affected or evacuated because of the explosion on a tube train at Parsons Green, which Scotland Yard is treating as a 'terrorist incident'.
H&F Council & @metpoliceuk opened rest centre at Lancaster Court estate for Parsons Green residents evacuated/affected by terrorist incident
All you need to know about what is known - and what is not - about the bomb attack on a London Tube train.
The installation of CCTV cameras on the the Tube could play a key role in finding the perpetrator of the Parsons Green explosion.
Theresa May rebuked the US president after he implied the London tube blast was carried out by suspects "in the sights" of Scotland Yard.